Recently, birds have started pooping all over our car. We bought a plastic owl and hung it up in the rafters. Epic fail- I think the birds felt angry and emboldened, and clearly know it's fake because the pooping has gotten really bad. It's almost like they're not in rafters anymore, but are sitting on our car itself. And it's like it's no longer sparrows, but they've brought in the big guys, like giant wild turkeys or something
Anyway, we knocked down the old nest they had up there (checked first to make sure there were no little occupants), but that didn't help either.
What is our best bet? Try to string a net up so they can't sit there? Put spikes down?